Chrysler Vehicle User Manual page 172

TJ
REAR AXLE - 216RBI (Continued)
Condition
Gear Teeth Broke
Axle Noise
REMOVAL
(1) Raise and support the vehicle.
(2) Position a suitable lifting device under the
axle.
(3) Secure axle to device.
(4) Remove the wheels and tires.
(5) Remove brake drums/calipers and rotors from
the axle.
(6) Disconnect parking brake cables from brackets
and lever.
(7) Remove wheel speed sensors, if necessary.
(8) Disconnect brake hose at the axle junction
block.
(9) Disconnect vent hose from the axle shaft tube.
(10) If equipped with Locker differential discon-
nect pressure hose from differential housing and
locker indicator connector (Fig. 1).
Possible Causes
1. Overloading.
2. Erratic clutch operation.
3. Ice-spotted pavement.
4. Improper adjustments.
1. Insufficient lubricant.
2. Improper ring gear and pinion
adjustment.
3. Unmatched ring gear and pinion.
4. Worn teeth on ring gear and/or
pinion.
5. Loose pinion bearings.
6. Loose differential bearings.
7. Mis-aligned or sprung ring gear.
8. Loose differential bearing cap
bolts.
9. Housing not machined properly.
(11) Mark the propeller shaft and yokes for instal-
lation alignment reference.
(12) Remove propeller shaft.
(13) Disconnect stabilizer bar links.
(14) Disconnect shock absorbers from axle.
(15) Disconnect track bar.
(16) Disconnect upper and lower suspension arms
from the axle brackets.
(17) Separate the axle from the vehicle.
INSTALLATION
NOTE: The weight of the vehicle must be supported
by the springs before suspension arms and track
bar fasteners can be tightened. If the springs are
not at their normal ride position, vehicle ride height
and handling could be affected.
REAR AXLE - 216RBI
Correction
1. Replace gears. Examine other
gears and bearings for possible
damage.
2. Replace gears and examine the
remaining parts for damage. Avoid
erratic clutch operation.
3. Replace gears and examine
remaining parts for damage.
4. Replace gears and examine
remaining parts for damage. Ensure
ring gear backlash is correct.
1. Fill differential with the correct
fluid type and quantity.
2. Check ring gear and pinion
contact pattern. Adjust backlash or
pinion depth.
3. Replace gears with a matched
ring gear and pinion.
4. Replace ring gear and pinion.
5. Adjust pinion bearing pre-load.
6. Adjust differential bearing
pre-load.
7. Measure ring gear run-out.
Replace components as necessary.
8. Inspect differential components
and replace as necessary. Ensure
that the bearing caps are torqued
tot he proper specification.
9. Replace housing.
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